SOLUTION: If a man travels p hours at an average rate of q miles per hour and then r hours at an average rate of s miles per hour, what is his overall average rate of speed?
A) (pq+rs)/(p+r
Question 1117425: If a man travels p hours at an average rate of q miles per hour and then r hours at an average rate of s miles per hour, what is his overall average rate of speed?
A) (pq+rs)/(p+r)
B) (q+s)/2
C) (q+s)/(p+r)
D) p/q + r/s
E) p/s + r/q Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website! .
The total distance he traveled was p*q + r*s.
The total time he spent was p+r.
Therefore, the average rate of speed for full travel was = .
Option A).